Apalling Lego!?

Comming back to the topic of lego, my brother found such a picture:

This is a concentration camp in Aushwitz!

First I thought how sick one has to be to play Lego concentration camp, but then I read that this is a form of art (!) and that it's an exposition in The Centre for Contemporary Art, Ujazdowski Castle. Now I'm crossed... Post a comment on your opinions, please.
Click on the link above and take a look at other works of Zbigniew libera.